<template>
    <div class="login-container">
        <van-nav-bar class="page-nav-bar" title="登录" >
          <van-icon slot ="left"  name="cross" @click="$router.back()"/>
        </van-nav-bar>
    <van-form ref="loginForm" @submit="onSubmit" validate-trigger="onSubmit">
    <van-cell-group inset>
    <van-field
      v-model="user.mobile"
      label="手机号"
      name="mobile"
      placeholder="请输入手机号"
      :rules="userFormRules.mobile"
      clearable
      type="number"
      maxlength="11"
    >
     <i slot="left-icon" class="iconfont icon-shouji"></i>
     </van-field>
    <van-field
      v-model="user.code"
      label="验证码"
      placeholder="验证码"
      type="number"
      :rules="userFormRules.code"
      maxlength="6"
    >
    <i slot="left-icon" class="iconfont icon-yanzhengma"></i>
    <template #button>
      <van-count-down
          v-if="isCountDownShow"
          :time="1000 * 60"
          format="ss s"
         @finish="isCountDownShow=false"
/>
        <van-button v-else class="send-sms-btn" round size="small" type="default" native-type="button" @click="sendSms">发送验证码</van-button>
    </template>
    </van-field>
  </van-cell-group>
  <div class="login-btn-wrap">
    <van-button round block type="info" class="login-btn" native-type="submit">
      提交
    </van-button>
  </div>
</van-form>
    </div>
  </template>
<script>
import { login, getSmsCode } from '@/api/user'
export default {
  name: 'LoginIndex',
  components: {},
  props: {},
  data () {
    return {
      user: {
        mobile: '13511111111',
        code: '246810'
      },
      userFormRules: {
        mobile: [{
          required: true,
          message: '手机号不能为空'
        }, {
          pattern: /^1[3456789]\d{9}$/,
          message: '手机号格式错误'
        }],
        code: [{
          required: true,
          message: '验证码不能为空'
        }, {
          pattern: /^\d{6}$/,
          message: '验证码格式错误'
        }]
      },
      isCountDownShow: false
    }
  },
  computed: {},
  watch: {},
  created () {},
  mounted () {},
  methods: {
    async onSubmit (values) {
      this.$toast.loading({
        duration: 0, // 持续时间，0表示持续展示不停止
        forbidClick: true, // 是否禁止背景点击
        message: '登录中...' // 提示消息
      })
      try {
        const res = await login(this.user)
        console.log('登录成功', res)
        this.$store.commit('setUser', res.data.data)
        this.$toast.success('登录成功')

        this.$router.back()
      } catch (err) {
        if (err.response.status === 400) {
          window.console.log('登录失败', err)
          this.$toast.fail('登录失败，手机号或验证码错误')
        }
      }
    },
    async sendSms () {
      try {
        await this.$refs.loginForm.validate('mobile')
      } catch (err) {
        window.console.log('验证失败')
        return
      }

      this.isCountDownShow = true
      try {
        await getSmsCode(this.user.mobile)
        this.$toast('发送成功')
      } catch (err) {
        this.isCountDownShow = false
        if (err.response.code === 429) {
          this.$toast('发送太频繁了，请稍后重试')
        } else {
          this.$toast('发送失败，请稍后重试')
        }
      }
    }

  }
}
</script>

  <style scoped lang="less">
   .login-container {
  .iconfont {
    font-size: 37px;
  }
  .send-sms-btn {
    width: 152px;
    height: 46px;
    line-height: 46px;
    background-color: #ededed;
    font-size: 22px;
    color: #666;
  }
  .van-count-down{
    margin-right: 50px;
    text-align:center;
    background-color: #6db4fb;
    width: 90px;
    height: 50px;
    line-height: 50px;
    border-radius:23px

  }

  .login-btn-wrap {
    padding: 53px 33px;
    .login-btn {
      background-color: #6db4fb;
      border: none;
    }
  }
}

</style>
